We're dividing 851367 by 86 
The aim is to understand the frequency of 86 in 851367.

Going ahead to step 1:
If we divide 8 by 86, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 86

Step 2:
The number 86 fits into 85 0 times, leaving a remainder of 85.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Fetch the next digit (1) from the dividend, attach it to 85 and continue: 851 / 86

Step 3:
86 goes into 851 9 times with a remainder of 77.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 774 from 851 and we're left with 77.
Fetch the next digit (3) from the dividend, attach it to 77 and continue: 773 / 86

Advancing to step 4:
86 goes into 773 8 times with a remainder of 85.
Record the quotient 8 as the next digit in the result. 
Result so far: 98.0
Subtract 688 from 773 to get 85.
Fetch the next digit (6) from the dividend, attach it to 85 and continue: 856 / 86

On to step 5:
856 divided by 86 is 9 with a remainder of 82.
Record the quotient 9 as the next digit in the result. 
Result so far: 989.0
Deduct 774 from 856 and we're left with 82.
Take the next digit (7) from the dividend and append it to 82, then repeat: 827 / 86

Going ahead to step 6:
86 goes into 827 9 times with a remainder of 53.
The number 9 becomes the next digit in our result. 
Result so far: 9899.0
Subtract 774 from 827 to get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Advancing to step 7:
If we divide 530 by 86, we get 6 and a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 9899.6
Subtracting 516 from 530 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 8:
When dividing 140 by 86, we get 1 with a remainder of 54.
Record the quotient 1 as the next digit in the result. 
Result so far: 9899.61
The remainder is 54 after subtracting 86 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 9:
The number 86 fits into 540 6 times, leaving a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 9899.616
Deduct 516 from 540 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 10:
86 goes into 240 2 times with a remainder of 68.
Use 2 as the next digit of our solution. 
Result so far: 9899.6162
Subtracting 172 from 240 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 11:
86 goes into 680 7 times with a remainder of 78.
Use 7 as the next digit of our solution. 
Result so far: 9899.61627
If we subtract 602 from 680, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 12:
The number 86 fits into 780 9 times, leaving a remainder of 6.
Use 9 as the next digit of our solution. 
Result so far: 9899.616279
The remainder is 6 after subtracting 774 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 13:
The number 86 fits into 60 0 times, leaving a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 9899.616279
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 14:
86 can be fit into 600 6 times, resulting in a remainder of 84.
Put 6 as the next digit of the answer. 
Result so far: 9899.61627906
Subtract 516 from 600 to get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

After the division, we end up with 9899.61627906 and a remainder of 8.4e-08.